JP2003083740A - Screw-inspecting apparatus - Google Patents
Screw-inspecting apparatusInfo
- Publication number
- JP2003083740A JP2003083740A JP2001274173A JP2001274173A JP2003083740A JP 2003083740 A JP2003083740 A JP 2003083740A JP 2001274173 A JP2001274173 A JP 2001274173A JP 2001274173 A JP2001274173 A JP 2001274173A JP 2003083740 A JP2003083740 A JP 2003083740A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- gear
- groove
- reference value
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ネジの溝の深さが
基準値内にあるか否かを簡単かつ確実に検査することが
できるネジ検査装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw inspection device capable of easily and surely inspecting whether the depth of a groove of a screw is within a reference value.
【０００２】[0002]
【従来の技術】ネジ加工を施した際に溝の深さが基準値
内にないと、ネジ込みが不可能であったり、ネジを破壊
してしまうことになるため、ネジ溝を検査してネジの良
否を判断することは重要である。ここで、ネジの溝深さ
は目視では判断不可能なため、生産現場で自動検査を進
めるには、リングゲージや反射型のセンサーを使用する
ことが行なわれていた。2. Description of the Related Art When a thread is processed and the depth of the groove is not within a standard value, screwing may be impossible or the screw may be broken. It is important to judge the quality of screws. Here, since the groove depth of the screw cannot be visually determined, a ring gauge or a reflection type sensor has been used to advance the automatic inspection at the production site.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、リング
ゲージでは、ゲージのネジ込み回転、ネジとゲージの食
いつき等のため検査に長時間が必要となったり、検査の
自動制御が難しいといった問題がある。また、反射型等
のセンサーでは、ネジの有無程度の判断までが限界であ
り、ネジの溝深さの判断は不可能である。However, in the ring gauge, there are problems that it takes a long time for inspection due to screwing rotation of the gauge, bite between the screw and the gauge, and automatic control of the inspection is difficult. Further, with a reflection type sensor or the like, there is a limit to the determination of the presence or absence of a screw, and it is impossible to determine the groove depth of the screw.
【０００４】そこで本発明は、構造が簡単で、ネジの溝
が深さ基準値内にないことによるネジの不良を確実に検
知し、ネジの良否を容易に判断することができるネジ検
査装置を提供することを目的とするものである。Therefore, the present invention provides a screw inspection apparatus which has a simple structure and is capable of surely detecting a defect of a screw due to the fact that the groove of the screw is not within the depth reference value and easily judging the quality of the screw. It is intended to be provided.
【０００５】[0005]
【課題を解決するための手段】本発明は、以上の課題を
解決するためになされたものであって、その要旨の第１
は、測定対象となるネジの溝の深さ基準値に合致する歯
を有するギヤと、ギヤを回転可能に保持する本体とから
なり、本体をネジの軸方向に移動させると、ネジの溝が
深さ基準値内にある場合だけネジの溝とギヤの歯とが噛
み合い、ギヤが回転するようになされているネジ検査装
置に係るものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is the first aspect of the invention.
Consists of a gear that has teeth that match the depth reference value of the thread groove to be measured, and a main body that holds the gear rotatably.When the main body is moved in the axial direction of the screw, the thread groove The present invention relates to a screw inspection device in which a groove of a screw meshes with a tooth of a gear and the gear rotates only when the depth is within a reference value.
【０００６】一方、本発明の要旨の第２は、逆に、ネジ
の溝の深さ基準値に合致しない歯を有するギヤを用い、
深さ基準値内にない場合だけネジの溝とギヤの歯とが噛
み合うようにしたネジ検査装置に係るものである。On the other hand, the second of the gist of the present invention, conversely, uses a gear having teeth that do not match the depth reference value of the groove of the screw,
The present invention relates to a screw inspection device in which a groove of a screw meshes with a tooth of a gear only when the depth is not within a reference value.
【０００７】そして好ましくは、ギヤが本体の周囲で正
多角形状に３個以上設けられたアームにそれぞれ取り付
けられており、それぞれのギヤ間の距離がネジの径に合
わせて変えられるネジ検査装置に係るものである。Preferably, a gear is attached to each arm provided with three or more regular polygons around the main body, and the distance between the gears can be changed according to the diameter of the screw. It is related.
【０００８】また、ギヤは取り替え自在であることが好
ましく、更に、本体にスプリングで反発支持されたピン
が取り付けられており、本体をネジの軸方向に移動させ
るとピンがネジのストッパーとなるようになされている
ことが好ましい。Further, it is preferable that the gear is replaceable, and further, a pin which is repulsively supported by a spring is attached to the main body so that when the main body is moved in the axial direction of the screw, the pin serves as a stopper of the screw. Is preferably done.
【０００９】[0009]
【発明の実施の形態】本発明の第１のネジ検査装置は、
測定対象となるネジの溝の深さ基準値に合致する歯を有
するギヤと、ギヤを回転可能に保持する本体とからな
る。即ち、ネジ溝と同じ溝形状の歯を持つギヤをネジ溝
に沿って這わせることでネジの良否を判断するものであ
り、本体をネジの軸方向に移動させると、ネジの溝が深
さ基準値内にある場合だけネジの溝とギヤの歯とが噛み
合い、ギヤが回転して本体を進めることができるのであ
る。一方、ネジ溝が浅い場合にはギヤが噛み合わないの
でギヤが回転せず、本体を進めることができないので、
ネジ溝が浅い不良と判断することができる。BEST MODE FOR CARRYING OUT THE INVENTION The first screw inspection device of the present invention is
It comprises a gear having teeth that match the depth reference value of the groove of the screw to be measured, and a main body that rotatably holds the gear. That is, the quality of the screw is judged by crawling a gear having teeth with the same groove shape as the screw groove along the screw groove.When the main body is moved in the axial direction of the screw, the depth of the screw groove is increased. Only when it is within the reference value, the groove of the screw meshes with the teeth of the gear, and the gear rotates to advance the main body. On the other hand, if the screw groove is shallow, the gears will not mesh and the gears will not rotate, and the main body cannot be advanced.
It can be judged that the thread groove is shallow.
【００１０】一方、本発明の第２のネジ検査装置は、測
定対象となるネジの溝の深さ基準値に合致しない歯を有
するギヤを用いる。例えば、ネジの溝が深さ基準値より
深い場合だけネジの溝とギヤの歯とが噛み合うにしてお
けば、ネジ溝が深さ基準値内にある場合にはギヤが噛み
合わないので、逆にネジ溝が正規寸法であると判断でき
るのである。On the other hand, the second screw inspection apparatus of the present invention uses a gear having teeth that do not match the depth reference value of the groove of the screw to be measured. For example, if the thread groove and gear teeth are engaged only when the thread groove is deeper than the depth reference value, the gear will not engage if the thread groove is within the depth reference value. It is possible to judge that the thread groove is a regular size.
【００１１】ここで、ギヤをネジ溝に沿って這わせるに
は何らかのガイドを設けておけばよいが、例えば、本体
の周囲で正多角形状に３個以上のアームを設け、そのア
ームにそれぞれギヤを取り付けることにより簡単に実現
できる。即ち、雄ネジであれば、３個以上のギヤの間に
雄ネジを挿入して本体を移動させるようにし、雌ネジは
その内面を３個以上のギヤの外側に当てて本体を移動さ
せればよいのである。但し、雌ネジの内面にギヤの外側
を当てる場合には、雌ネジの内径よりも小さなＲを持っ
たギヤを使用することで、雌ネジ内にギヤを挿入できる
ようにしておく必要がある。Here, some kind of guide may be provided in order to make the gear crawl along the thread groove. For example, three or more arms having a regular polygonal shape are provided around the main body, and each of the arms has a gear. It can be easily realized by attaching. That is, if it is a male screw, insert the male screw between three or more gears to move the main body, and for the female screw, move the main body by applying its inner surface to the outside of the three or more gears. It's good. However, when the outer side of the gear is applied to the inner surface of the female screw, it is necessary to use a gear having a radius R smaller than the inner diameter of the female screw so that the gear can be inserted into the female screw.
【００１２】なお、一つのネジ検査装置で様々な外径の
雄ネジや様々な内径の雌ネジを検査できるようにするに
は、それぞれのギヤ間の距離をネジの径に合わせて変え
られるようにしておけばよい。また、様々な種類の溝ピ
ッチに対応できるようにするには、ギヤを取り替え自在
にしておけばよい。更に、ギヤの形状は、ネジのリード
をつけてもつけなくてもよい。In order to be able to inspect male threads of various outer diameters and female threads of various inner diameters with one screw inspection device, it is possible to change the distance between each gear according to the diameter of the screw. You can leave it as it is. Further, in order to be able to deal with various kinds of groove pitches, the gears may be exchangeable. Furthermore, the shape of the gear may or may not be with a screw lead.
【００１３】ところで、生産現場で自動検査を進めるに
は、ネジの良否を瞬時に判断できるようにする必要があ
る。そこで、本体にスプリングで反発支持したピンを取
り付けておき、本体をネジの軸方向に移動させるとピン
がネジのストッパーとなるようにしておくことが好まし
い。By the way, in order to proceed with the automatic inspection at the production site, it is necessary to be able to instantly judge the quality of the screw. Therefore, it is preferable to attach a pin repulsively supported by a spring to the main body so that the pin serves as a stopper for the screw when the main body is moved in the axial direction of the screw.
【００１４】即ち、ネジを検査台に固定しておき、同軸
上で本体を自動的に往復運動させるのである。そして、
本発明の第１のネジ検査装置の場合、本体のピンがネジ
に接触してスプリングを押せば、ギヤがネジ溝と噛み合
って回転したと判断できるので、そのネジは合格品にな
る。一方、本体のピンがネジに接触するまで移動しなけ
れば、ギヤがネジ溝と噛み合わず、回転できなかったこ
とになるので、そのネジは不合格品である。なお、本発
明の第２のネジ検査装置の場合には、合格品と不合格品
の判断が逆になる。That is, the screws are fixed to the inspection table, and the main body is automatically reciprocated coaxially. And
In the case of the first screw inspection apparatus of the present invention, if the pin of the main body comes into contact with the screw and pushes the spring, it can be determined that the gear has engaged with the screw groove and rotated, and therefore the screw is an acceptable product. On the other hand, if the pin of the main body does not move until it comes into contact with the screw, it means that the gear did not mesh with the thread groove and could not rotate, so the screw is a rejected product. In addition, in the case of the second screw inspection apparatus of the present invention, the judgment of the acceptable product and the rejected product is reversed.
【００１５】[0015]
【実施例】以下、本発明の好ましい実施の形態の具体例
を図面に基づいて説明する。図１は、本発明のネジ検査
装置の一例を示す一部断面図であり、図２はその正面図
である。ネジ検査装置は、測定対象となるネジ１０の溝
１０Ａの深さ基準値に合致する歯１Ａを有するギヤ１
と、ギヤ１を回転可能に保持する本体２とから構成され
ている。また、ギヤ１は本体２の周囲で正三角形状に３
個設けられたアーム３にそれぞれ取り付けられている。
更に、本体２にはスプリング４で反発支持されたピン５
が取り付けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific examples of preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial sectional view showing an example of the screw inspection device of the present invention, and FIG. 2 is a front view thereof. The screw inspection device includes a gear 1 having teeth 1A that match a depth reference value of a groove 10A of a screw 10 to be measured.
And a main body 2 that rotatably holds the gear 1. Further, the gear 1 is formed into an equilateral triangle around the main body 2.
It is attached to each arm 3 provided individually.
Further, the main body 2 has a pin 5 repulsively supported by a spring 4.
Is attached.
【００１６】本発明のネジ検査装置を使用するには、ネ
ジ検査装置の３個のギヤ１の間に測定対象であるネジ１
０を挿入する。そして、図３に一部拡大断面図で示す通
り、ネジ１０に対して本体２をＡ方向に移動させる。す
ると、ネジ１０の溝１０Ａが基準値内の場合にはギヤ１
がＢ方向に回転するので、本体２はＡ方向に進んでいく
ことができる。しかし、ネジ１０の溝１０Ａが浅い場合
にはギヤ１の歯１Ａとネジ１０の溝１０Ａとが噛み合わ
ず、本体２はＡ方向に進めない。従って、本体２の進み
具合でネジ１０の良否が判断できることになる。To use the screw inspection device of the present invention, the screw 1 to be measured is placed between the three gears 1 of the screw inspection device.
Insert 0. Then, as shown in a partially enlarged sectional view of FIG. 3, the main body 2 is moved in the A direction with respect to the screw 10. Then, when the groove 10A of the screw 10 is within the reference value, the gear 1
Rotates in the B direction, the main body 2 can move in the A direction. However, when the groove 10A of the screw 10 is shallow, the teeth 1A of the gear 1 and the groove 10A of the screw 10 do not mesh with each other, and the main body 2 cannot advance in the A direction. Therefore, the quality of the screw 10 can be determined based on the progress of the main body 2.
【００１７】[0017]
【発明の効果】以上説明した通り、本発明のネジ検査装
置は、測定対象となるネジの溝の深さ基準値に合致する
（又は合致しない）歯を有するギヤと、ギヤを回転可能
に保持する本体とからなり、本体をネジの軸方向に移動
させると、ネジの溝が深さ基準値内にある（又は深さ基
準値内にない）場合だけネジの溝とギヤの歯とが噛み合
い、ギヤが回転するようになされているので、構造が簡
単で、ネジの溝が浅い（又は深い）ことによるネジの不
良を確実に検知し、ネジの良否を容易に判断することが
できる。As described above, the screw inspection apparatus of the present invention has a gear having teeth that match (or does not match) the depth reference value of the groove of the screw to be measured, and the gear is rotatably held. When the body is moved in the axial direction of the screw, the groove of the screw meshes with the teeth of the gear only if the groove of the screw is within the depth reference value (or not within the depth reference value). Since the gear is configured to rotate, the structure is simple, and it is possible to reliably detect a defect of the screw due to the shallow (or deep) groove of the screw and easily determine the quality of the screw.
【図１】図１は、本発明のネジ検査装置の一例を示す一
部断面図である。FIG. 1 is a partial cross-sectional view showing an example of a screw inspection device of the present invention.
【図２】図２は、図１に示す本発明のネジ検査装置の正
面図である。FIG. 2 is a front view of the screw inspection device of the present invention shown in FIG.
【図３】図３は、本発明のネジ検査装置におけるギヤの
歯とネジの溝との噛み合い状況を示す一部拡大断面図で
ある。FIG. 3 is a partially enlarged cross-sectional view showing a meshing state of gear teeth and screw grooves in the screw inspection device of the present invention.
１‥ギヤ １Ａ‥歯 ２‥本体 ３‥アーム ４‥スプリング ５‥ピン １０‥ネジ １０Ａ‥溝 1 ... Gear 1A ... teeth 2 main body 3 arm 4 Spring 5 pin 10 ... screws 10A Groove
Claims (6)
Ａ）の深さ基準値に合致する歯（１Ａ）を有するギヤ
（１）と、ギヤ（１）を回転可能に保持する本体（２）
とからなり、本体（２）をネジ（１０）の軸方向に移動
させると、ネジ（１０）の溝（１０Ａ）が深さ基準値内
にある場合だけネジ（１０）の溝（１０Ａ）とギヤ
（１）の歯（１Ａ）とが噛み合い、ギヤ（１）が回転す
るようになされていることを特徴とするネジ検査装置。1. A groove (10) of a screw (10) to be measured.
A gear (1) having teeth (1A) matching the depth reference value of A), and a main body (2) rotatably holding the gear (1).
When the body (2) is moved in the axial direction of the screw (10), the groove (10A) of the screw (10) becomes the groove (10A) only when the groove (10A) of the screw (10) is within the depth reference value. A screw inspection apparatus, characterized in that the gear (1) is adapted to rotate by meshing with the teeth (1A) of the gear (1).
Ａ）の深さ基準値に合致しない歯（１Ａ）を有するギヤ
（１）と、ギヤ（１）を回転可能に保持する本体（２）
とからなり、本体（２）をネジ（１０）の軸方向に移動
させると、ネジ（１０）の溝（１０Ａ）が深さ基準値内
にない場合だけネジ（１０）の溝（１０Ａ）とギヤ
（１）の歯（１Ａ）とが噛み合い、ギヤ（１）が回転す
るようになされていることを特徴とするネジ検査装置。2. The groove (10) of the screw (10) to be measured.
Gear (1) having teeth (1A) that do not match the depth reference value of (A), and body (2) that rotatably holds gear (1).
When the main body (2) is moved in the axial direction of the screw (10), the groove (10A) of the screw (10) becomes the groove (10A) of the screw (10) only when the groove (10A) is not within the depth reference value. A screw inspection apparatus, characterized in that the gear (1) is adapted to rotate by meshing with the teeth (1A) of the gear (1).
形状に３個以上設けられたアーム（３）にそれぞれ取り
付けられていることを特徴とする請求項１又は２に記載
のネジ検査装置。3. The gear (1) according to claim 1, wherein the gear (1) is attached to each arm (3) provided in three or more regular polygonal shapes around the main body (2). Screw inspection device.
（１０）の径に合わせて変えられることをことを特徴と
する請求項３に記載のネジ検査装置。4. Screw inspection device according to claim 3, characterized in that the distance between the respective gears (1) is variable according to the diameter of the screw (10).
特徴とする請求項１〜４のいずれか１項に記載のネジ検
査装置。5. The screw inspection device according to claim 1, wherein the gear (1) is replaceable.
（５）が本体（２）に取り付けられており、本体（２）
をネジ（１０）の軸方向に移動させると、ピン（５）が
ネジ（１０）のストッパーとなることを特徴とする請求
項１〜５のいずれか１項に記載のネジ検査装置。6. A body (2) having a pin (5) repulsively supported by a spring (4) attached to the body (2).
The screw inspection device according to any one of claims 1 to 5, wherein the pin (5) serves as a stopper of the screw (10) when the screw is moved in the axial direction of the screw (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001274173A JP2003083740A (en) | 2001-09-10 | 2001-09-10 | Screw-inspecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001274173A JP2003083740A (en) | 2001-09-10 | 2001-09-10 | Screw-inspecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003083740A true JP2003083740A (en) | 2003-03-19 |
Family
ID=19099268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001274173A Pending JP2003083740A (en) | 2001-09-10 | 2001-09-10 | Screw-inspecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003083740A (en) |
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| JPH0665803U (en) * | 1993-02-19 | 1994-09-16 | 株式会社ミツトヨ | Female thread effective diameter measuring instrument |
| JPH10103905A (en) * | 1996-09-26 | 1998-04-24 | Mitsutoyo Corp | Measurement method |
| JP2000292156A (en) * | 1999-04-09 | 2000-10-20 | Tokyo Seimitsu Co Ltd | Method for measuring effective screw hole depth |
| JP2001082952A (en) * | 1999-09-14 | 2001-03-30 | Mitsutoyo Corp | Method for measuring screw thread shape |
-
2001
- 2001-09-10 JP JP2001274173A patent/JP2003083740A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146002A (en) * | 1979-05-02 | 1980-11-14 | Mitsubishi Heavy Ind Ltd | Measuring unit of inner diameter |
| JPS57166105U (en) * | 1981-04-14 | 1982-10-20 | ||
| JPS6318881Y2 (en) * | 1982-01-14 | 1988-05-27 | ||
| JPS61181901A (en) * | 1985-02-07 | 1986-08-14 | Sato Rashi:Kk | Measuring device for effective diameter of nut |
| JPS645103A (en) * | 1987-06-26 | 1989-01-10 | Atr Kodenpa Tsushin Kenkyusho | Microwave branching circuit device |
| JPH01174901A (en) * | 1987-12-29 | 1989-07-11 | Tokai Kiyouhan Kk | Apparatus for measuring length of screw part |
| JPH0225701A (en) * | 1988-07-15 | 1990-01-29 | Akebono Brake Ind Co Ltd | Measuring jig for position of inside diameter snap ring groove |
| JPH05203441A (en) * | 1992-01-27 | 1993-08-10 | Nissan Motor Co Ltd | Female thread measuring apparatus |
| JPH0665803U (en) * | 1993-02-19 | 1994-09-16 | 株式会社ミツトヨ | Female thread effective diameter measuring instrument |
| JPH0665805U (en) * | 1993-02-22 | 1994-09-16 | 株式会社ミツトヨ | Screw hole depth measuring instrument |
| JPH10103905A (en) * | 1996-09-26 | 1998-04-24 | Mitsutoyo Corp | Measurement method |
| JP2000292156A (en) * | 1999-04-09 | 2000-10-20 | Tokyo Seimitsu Co Ltd | Method for measuring effective screw hole depth |
| JP2001082952A (en) * | 1999-09-14 | 2001-03-30 | Mitsutoyo Corp | Method for measuring screw thread shape |
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